Driving mechanism for web feeding and cutting machines



Nov. 29, 1927.

H. M. BARBER DRIVING MECHANISM FOR WEB FEEDING. AND CUTTING MACHINES 3Sheets-Shet 1 Filed Nov, 1923 IN VEN TOR ATT ORN E YS Nov. 29, 1927.

H. M. BARBER DRIVING MECHANISM FOR WEB FEEDING AND CUTTING MACHINES 3Sheets-Sheet 2 INVENTOR Filed Nov. 9, 1923 ATTORNEYS Nov. 29, 1927.1,650,928

I H. M. BARBER DRIVING MECHANISM FOR WEB FEEDING AND CUTTING MACH INESFiled Nov. 9, 1923 5 Sheets-Sheet. 5

ATTORNEYS Patented Ne 29 @9 7 HOWARD M. BAR-BER, OI STONINCT'TON,CONNECTICUT, ASSIGNGB TO C. B. COTTRELL 6c SON$ COMPANY, OF NEW/V YORK,N. Y., A CORPORATION OF DELAWARE.

DRIVING MECHANISM FOR WEB FEEDING AND CUTTING MACHINES.

Application filed November 9, 1923. Serial No. 673,772.

The object of my invention is to provide a connection between thefeeding and driving mechanisms, which connection may be easily andaccurately adjusted to compensate for longer or shorter sheets, withoutdisconnecting the parts.

My invention comprises a longitudinally adjustable web feeding andcutting niechanism, a driving mechanism and a connecting shaft havingupper and lower gears meshing at all times with their respective gearsof the web feeding and cutting mechanism and the driving mechanism, theshaft having a sliding interlocked connection with its gear which meshesith the driving mechanism, whereby the shaft may be swung into differentangular positions without disconnecting the parts as the web feeding andcutting niechanisn'i is adjusted to cut sheets of different lengths fromthe traveling web; means being provided for securing the shaft in itsadjusted positions.

A practical embodiment of my invention is represented in theaccompanying drawings, in which Fig. 1 represents in side elevationthose portions of a web feeding and cutting inaehine which include myinvention, the parts being shown adjusted for cutting sheets of apredetermined length. 7

Fig. 2 represents a similar View with the parts shown adjusted forcutting sheets of a. different length.

Fig. 3 represents a detail face view of the carriage frame at the pointWhere the upper shaft hanger is adjustably secured thereto.

Fig. 4: represents a detail face view of the main frame at the pointwhere the lower shaft hanger is adjustably secured thereto.

Fig. 5 represents a detail section on an enlarged scale, taken in theplane of the line V-V of Fig. 1.

Fig. 6 represents a detail section taken in the plane of the line VIVTof Fig. 5.

The main frame of the machine which carries the driving mechanism, isdenoted by 1 and the frame which carries the web feeding and cuttingmechanism is denoted by 2. This carriage frame is adjustablelongitudinally along the main frame to provide for the cutting of sheetsof varying lengths.

The connecting shaft 3 is provided with upper and lower gears i and 5,the upper gear at meshing at all times with a gear 6 of the web feedingand cutting mechanism. mounted on the cutter shaft 8, and the lower gear5 meshing at all times with a gear '2' of the driving mechanism, mountedlooselyon the stud shaft 9.

The gear 6 is shown as rotatively adjustable with respect to its shaft 8by providing a flanged sleeve 10, keyed to the shaft 8, the face of theflange having a concentric undercut groove 11 for receiving the heads ofan annularseries of bolts 12, the shanks of which pass through the webof the gearfi. Nuts 13 engage said shanks to clamp the gear 6 to thesaid flanged sleeve 1.0.

The upper shaft hanger 14 engages the face of the carriage frame 2 andis pivoted on the shaft 8. This hanger is provided with oppositelydisposed wings 15, 16 having elongated slots 17, 18 concentric with theaxis .of the gear 6, through which slots fastening bolts 19, 20 pass,each into engagement with one of a. series of holes 21, 22 in thecarriage frame 2, for securing the hanger to the carriage in any of itsadjusted positions.

The lower shaft hanger 23 engages the face of a bracket 2% of the mainframe 1 and it is pivoted on the stud shaft 9. This hanger is providedwith wings 25, 26, in the face of which. there is located an undercutgroove 27 concentric with the axis of the gear 7 for receiving the headof a fastening bolt 28, the shank of which passes through a hole in themain frame 1. A nut engages said shank for securing the hanger to theframe.

A gear 30 of the driving mechanism is rotatively mounted on the studshaft 9 and the driving mechanism gear 7 is shown as adjustablysecuredto the gear 30'by providing the gear 30 with an annular series of-bolts31, the shanks of which enter an annular series of holes in the web ofthe gear 7. The axis of the connecting shaft 3 passes through the axisof the gear 7. This is provided for in the present instance by an eye 32in the stud shaft 9, through which the connecting shaft 3 extends.

The arrangement of the parts as herein shown and described will permitthe longitudinal adjustment of the web feeding and cutting carriagewithin wide limits, to provide for the cutting of sheets of varyinglengths, without disconnecting the web feeding and cutting mechanismtransits driving iii? mechanism. After the web feeding and cuttingcarriage has been adjusted longitudinally to the desired position forcutting sheets of a predetermined length, the upper and lower shafthangers may be secured to their respective frames, thus forming a rigidconnection between the driving mechanism and the web feeding and cuttingmechanism.

The bolts 31, carried by the gear 30, have their shanks weakened at 33where they enter the web of the gear 7 so that the bolts will shear oiland prevent the breakage of the gears when an abnormal strain is broughton them by the choking of the free operation of the cutters in trying tocut through several thicknesses of burlap or other material at the sametime.

The driving relationship between the driving mechanism and the webfeeding and cutting mechanism is obtained by loosening the nuts 1 on thebolts 12. thus permitting the gear (3 to be rotated with respect to theflanged sleeve which is keyed to the shaft Fl. After the gear 6 has beenrotatively adjusted to the desired position. the gear may be secured tothe 'tlanged sleeve 10 in this adjustment by tightening the nuts 13.

The provision of the series of holes 21 and 22 in the carriage frameenables the bolts 19 and to be changed from one hole to another. topermit a very Wide range of movement of the carriage along the mainframe.

It will thus be seen that I have provided for a wide range ofadjustments by a very simple combination of parts which are readilyaccessible and quickly brought into the desired relationship.

It is evident that various changes may be resorted to in theconstruction, form and arrangement of the several parts withoutdeparting from the spirit and scope of my invention: and hence, I do notintend to be limited to the particular embodiment herein shown anddescribed. but

\Vhat I claim is 1. A main frame, a carriage adjustable longitudinallyalong the same, a gear carried by the carriage, a driving mechanismcarried by the main frame, a gear on said driving mechanism and aconnecting shaft having upper and lower gears meshing respectively withsaid gears, said connecting shaft having a sliding interlockedconnection with one of its gears to permit the sha it to be moved todifferent angular positions by the adjustment of said carriage. withoutdisconnecting the parts, and means for ecuring the shaft in itsdillerent angular posilions comprising upper and lower shaft hangershaving elongated slots and taste ing bolts slidable in their respectiveslots and engaging the carriage and main frame respectively.

2. A main frame, a carriage adjustable longitudinally along the same, agear carried by the carriage. a driving mechanism carried by the mainframe, a gear on said driving mechanism and a connecting shalt havingupper and lower gears meshing respectively with said gears, saidconnecting shaft having a sliding interlocked connection with one ot itsgears to permit the shaft to be moved to ditl'erent angular positions bythe adjustment of said carriage, without disconnecting the parts. andmeans for securing the shaft in its ditl'erent angular positionscomprising upper and lower shaft hangers having elongated slots andfastening bolts slidable in their respective slots and engaging thecarriage and main frame respectively. the listening bolts for the upperi: it hanger being adjustably positioned on the carriage.

3. A main frame, a carriage adjustable longitudinally along the same, agear carried by the carriage, a driving mechanism carried by the mainframe. a gear on said driving mechanism and a connecting shaft havingupper and lower gears meshing respectively with said gea said connectingshatt having a sliding interlocked connection with its lower gear topermit the shaft to be moved to different. angular positions by theadjustment of said carriage, without disconnecting the parts, and meansfor securing the shaft in its diti'ercnt angular positions comprisingupper and lower shaft hangers having elongated slots and fastening boltsslidable in their respective slots and engaging the carriage and mainframe respectively, the fastening bolts for the upper shaft hanger beingadjustably positioned on the carriage.

In testimony, that I claim the foregoing my invention, 1 have signed myname this 7th day of November, 192

HOlVAltD Kl. BARBER.

